12214320 has 40 divisors (see below), whose sum is σ = 37865136. Its totient is φ = 3257088.

The previous prime is 12214303. The next prime is 12214331. The reversal of 12214320 is 2341221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12214320² = 298379226124800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12214320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25207 + ... + 25686.

Almost surely, 2^12214320 is an apocalyptic number.

12214320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12214320 is an abundant number, since it is smaller than the sum of its proper divisors (25650816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12214320 is a wasteful number, since it uses less digits than its factorization.

12214320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50909 (or 50903 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12214320 is about 3494.8991401756. The cubic root of 12214320 is about 230.2977869340.

Adding to 12214320 its reverse (2341221), we get a palindrome (14555541).

The spelling of 12214320 in words is "twelve million, two hundred fourteen thousand, three hundred twenty".